Vibrational Properties of Additively Manufactured Inconel 718

摘要

In a deployed environment, rapid repair of damaged aircraft is essential for assuring mission success. Additive Manufacturing has the potential to build the parts needed for aircraft repair. However, resonant frequencies can cause damage to these parts and their surroundings while also facilitating undesired effects and behaviors. Knowledge of an object's vibrational properties is critically important to avoid these resonant frequencies. The increasing prevalence of additively manufactured metals in the aerospace industry necessitates research into their vibrational properties and the adequacy of modeling tools to predict the different modes of vibration. This research assesses the vibrational properties of additively manufactured Inconel 718 with different laser exposure patterns. The vibrational modes were measured using a laser vibrometer and compared to traditional beams modeled through finite element analysis.